[not yet available online]
293742 858238 Quelchia conferta N.E. Br.
Trans. Linn. Soc. London, ser. 2, vol. 6 : t. 7 (1901) [J.N. Fitch]
379449858237 Quelchia cardonae Steyerm.
Mem. New York Bot. Gard., vol. 9 : p. 465, fig. 109 ()
